Chemical and Pharmaceutical Bulletin p. 1632 - 1634 (1998)
Update date:2022-08-30
Topics:
Kakehi, Akikazu
Ito, Suketaka
Suga, Hiroyuki
Takano, Satoshi
Hirata, Kazuyuki
The treatment of 2H-pyrano[2,3-b]indolizin-2-imines and 2H-thiino[3,2- a]indolizin-2-imines with acetic acid at reflux temperature smoothly afforded the corresponding 2H-pyrano[2,3-b]indolizin-2-one and 2H-thiino- [3,2a]indolizin-2-one derivatives in moderate to good yields. An X-ray analysis of a 2H-thiino[3,2-a]indolizin-2-one derivative was also performed.
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